I would like to upgrade my exisiting enviroment of two call managers sub and primary 4.x and one unity box 4.x to the latest version.
Options and questions are:
Upgrade old hardware to support upgrade. _ not likely
Purchase cisco boxes - not prefered
purchase dell servers and install upgrades on and migrate enviroment
VM some of the solution ,,,,
Whats the best versio to move to is 8.x stable at this point... or should we go to 7.x is there a good document or video on this migration since it changes alot and changes lic's ...